a
{
    text-decoration: none;

    color: inherit;
    outline: none;
}

body
{
    font-family: Helvetica, 'PingFang SC', 'Microsoft YaHei', sans-serif;

    overflow: hidden;

    cursor: default;
    -webkit-user-select: none;
            user-select: none;

    color: white;
    background-color: rgb(24, 37, 77);
}

body::-webkit-scrollbar
{
    display: none;
}

h1
{
    font-size: 24px;

    text-align: center;
    text-transform: uppercase;
}

input
{
    font-size: 14px;

    display: block;

    width: 93%;
    margin-top: 15px;
    padding-top: 10px;
    padding-bottom: 10px;
    padding-left: 15px;

    border: 1px solid rgba(0, 0, 0, .1);
    border-radius: 5px;
    background-color: white;
}

input:focus
{
    outline: none;
}

p
{
    line-height: 24px;

    text-align: center;
}

.avatar
{
    display: block;

    width: 150px;
    height: 150px;
    /*margin: 10% 0 0 44%;*/
    margin: 10% 0 0 calc(50% - 3px);

    transform: translateX(-50%);

    border: 0 solid rgba(255, 255, 255, .2);
    border-radius: 50%;
    background-color: rgba(255, 255, 255, .1);
}

.bg-img
{
    position: fixed;
    z-index: -1;
    top: 0;
    left: 0;

    display: block;

    width: 100%;
    height: 100%;

    transition: all 3s linear;
    transform: scale(1.1); /*scale 图片缩放*/

    opacity: .7; /*不透明级别*/

    object-fit: cover;
    filter: blur(8px); /*滤镜 blur:高斯模糊滤镜*/
}

.btn
{
    font-size: inherit;

    display: block;

    margin: 10px 0 10px calc(50% - 35px);
    padding: 10px 20px;

    color: white;
    border: 1px solid rgba(255, 255, 255, .2);
    border-radius: 10px;
    background-color: rgba(255, 255, 255, .1);
}

.btn:focus,
.btn:hover
{
    background-color: rgba(255, 255, 255, .1);
    box-shadow: 0 0 2px rgb(24, 37, 77);
}

.btn:active
{
    background-color: rgba(255, 255, 255, .2);
}

.btn_content
{
    font-size: 16px;

    width: 100%;
    padding-left: 0;

    color: white;
    background-color: rgba(0, 102, 204, 1);
}

.btn_content:focus
{
    outline: 0;
}

.btn_content:active
{
    position: relative;
    top: 1px;
}

.card
{
    width: 280px;
    margin: 20px 45px 15px 50px;
}

.card th
{
    padding-top: 12px;
}

.hidden_div_background
{
    position: absolute;
    z-index: 1001;
    top: 0;
    left: 0;

    display: none;

    width: 100%;
    height: 100%;

    opacity: .1;
    background-color: #fff;
}

.hidden_div_content
{
    position: absolute;
    z-index: 1002;
    top: 25%;
    left: calc(50% - 190px);

    display: none;
    overflow: auto;

    width: auto;
    height: auto;
    padding-bottom: 10px;

    transition: all 2s linear;

    opacity: 0;
    border: 0 solid;
    border-radius: 15px;
    background-color: rgba(255, 255, 255, .2);
}

.warning
{
    font-size: 12px;

    display: none;

    padding-left: 15px;

    text-align: left;

    color: #9e0101de;
}
